Dostald h



July 24, 1923.

. D. H. LADD IGNITION WIRING AND CONDUCTOR FOR INTERNAL COMBUSTION ENGINES Filed April 21. 1921 I I 3mm DONALD. H. LAoo;

Patented .l uiy 2-5:, 19 23.

2 t it it a an r S.

DONALD H. LADD, OF TORRANGE, CALIFORNIA.

IGNITION WIRING AND CONDUCTDB FOB INTERll'AL-CGMBUSTION ENGINES.

Application filed April 21, 1921. Serial No. 463,285.

To (51? whom it may concern.

Be it known that I, DONALD H. LADD, a citizen of the United States, and resident of Torrance, in the county of Los Angeles and State of California, have invented certain new and useful Improvements in Ignition Wiring and Conductors for Internal-Cour bustion Engines, of which the followingis a specification.

My present invention particularly pertains to electricalconductors and their, connections tor timers or commutators, and especially relates to an attachment for timers of the Ford type such as are used with the internal combustion engines on Ford automobiles and tractors.

Timers of the Ford type embody an oscillatory cylindrical shell having a series f radially extending binding posts on its outer periphery to which the terminals of electrical conductors are fastened and which conductors have a flexible length leading from the shell to permit turning of the latter, and with the flexible conductors extending from the shell in such fashion as to bend when the shell is turned. This bending of the conductors may cause them to break and thereby result in shorting or interruption of the electrical circuit so as to interfere with the ignition circuit controlled by the timer.

An object of my invention is to provide a device whereby a twisting movement will be imparted to the flexible lengths of conductor leading to the timer shell or turning the shell Without effecting a bending action thereon, so as to obviate breaking the conductor, it being found that a wire is less apt to break when a length is twisted than when abruptly bent as the molecular movement in the wire is distributed over a greater portion of the wire.

Another object is to provide a conductor mountingadapted to be readily attached to a commutator shell and by which a series of flexible conductors may be fastened at and extend from a point in alignment with the axis or the turnable commutator shell.

In carrying out the foregoing objects I employ the parts, and the combination and arrangement of parts hereinafter described and claimed and illustrated in the accompanying drawing, in which Figure 1 is a view in side elevation of a timer showing the invention applied.

Fig. 2 is a view in front elevation.

Fig. 3.

Fig. 5 is a view in perspective showing the conductor bracket and terminal block to be carried by the timer shell.

In the drawings 6 indicates a cylindrical timer or commutator shell mounted to oscil late on a wall 7 and adapted to be turned on an axis by a rod 8 and which shell is provided with a series oil radially extending binding posts 9, 10, 11 and 12 on its outer periphery, is common in timers of the Ford type. i

In carrying out my invention I provide a bracket 13 to be mounted on the shell which bracket is formed of tour stiff insulated wires, 14, l5, l6 and 17, which are bound together intermediate their ends by a tape winding 18 whereby the bracket is termed with a rigid shank portion 19.

The inner ends of the wires id, 15, 16, and l? are designed to be connected to the bind ing posts 9, 10, 11 and 12, and the wires are arranged so that the shank will extend outwardly from the end oi the shell. The outer ends of the wires are connected to binding posts 20, 21, 22 and 23, carried on an insulating block 2 whereby the block is supported on a bracket in spaced relation to the shell with the center of the block located in alignment with the axis of rotation of the shell. The bracket 19 being rigid, the insu lated block 24L will be held in rigid relation to the shell and will move in unison therewith on a corresponding axis of rotation.

A bracket 25 mounted on the wall 7 carries an insulated block 26 provided with binding posts 27, 28, 29 and 30 to which are connected conductors 31, 32, and 34 leading to the points or": distribution. Connecting with the binding posts on the blobk 26 are two pairs of twisted junction conductors 35 and 36 which are bowed outwardly and downwardly from the block 26, and are passed through an opening 87 formed in the center of the block 24:; the conductors in the pairs 35 and 36 being connected to the bind ing posts on the block 24 to efiect electrical connection with the several conductors forming the bracket 19.

In the operation of the invention turning movement of the timer shell will effect a corresponding movement of the insulator block 2 1, which, because of the twisted conductors connecting with the center of said block in alignment with the axis of rotation of the block and shell will cause a twisting movement to be imparted to these con ductors, which, being flexible, the twisting action thereon will be distributed through out a substantial length thereof, thus rendering the possibility oi breaking the conductor by such twisting movement very remote.

1. An ignition wiring and conductor attachment tor timers embodying an oscillatory shell, and a series of binding posts on said shell, and a series oi conductors attached to said binding posts. and formed to provide a stilt bracket projecting from the end of the shell, and flexible conductors connecting with said bracket conductors substantially in alignment with the ascis oi rotation of said shell.

2. An ignition wiring attachment for timers embodying an oscillatory shell and a series of binding posts on said shell; a series of still wire conductors connecting with the binding posts on said shell and iormed to provide a still bracket projecting from the end of the shell, an insulating block carried by said conductors and arranged in front of and in spaced relation to the end of the shell,

and a series of flexible conductors connecting with said block and extending therefrom in alignment with the axis of rotation of said shell, said flexible conductors being electrically connected to the stiii" conductors.

3. In an ignition wiring attachment for timers, the combination of an oscillatory shell, a series of binding posts on said shell, a series of flexible conductors, and means for electrically connecting said conductors to the binding posts on said shell wherebysaid conductors will approach said shell axially thereof and adjacent the center of oscillation thereof.

4C. In a wiring system for internal com bustion engines, the combination of a turnable timer shell, and conductor wires electrically connected to said timer shell, said conductor wires approaching said timer shell in a line which is close to and parallel with a line in alignment with the axis of rotation of said timer shell whereby said conductor wires receive only a slight movement when the timer is oscillated on its axis.

In testimony whereof l have signed my name to this specification in the presence of two subscribing witnesses.

' D. H. LAD D.

Witnesses:

Gnonen TRAYNER, ADA LADD. 

